<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        function makeMultiplier(a) {
            const fn = (b) => a * b
            return fn
        }


        const multiplyByThree = makeMultiplier(3);
        console.log(multiplyByThree(5));
        console.log(multiplyByThree(10));

    </script>
</body>

</html>